Error
Error Code:
1695
MySQL Error 1695: Prevent SQL Log Bin Change In Routines
Description
This error occurs when a stored function or trigger attempts to modify the `sql_log_bin` system variable. MySQL explicitly disallows changing this critical variable within routine contexts to prevent unexpected behavior, maintain data integrity, and ensure proper replication. It signifies an attempt to control binary logging at an inappropriate scope.
Error Message
Cannot change the sql_log_bin inside a stored function or trigger
Known Causes
3 known causesDirect `SET sql_log_bin` Statement
A `SET sql_log_bin = ...` statement is explicitly included within the body of a stored function or trigger, attempting to alter binary logging behavior.
Indirect Modification via Called Procedure
The stored function or trigger calls another stored procedure that, in turn, contains logic to modify the `sql_log_bin` variable.
Misunderstanding of Variable Scope
Developers may incorrectly assume that `sql_log_bin` can be safely altered locally within a routine, similar to other session-specific variables.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service